20345016611 has 8 divisors (see below), whose sum is σ = 21545383104. Its totient is φ = 19145050240.

The previous prime is 20345016569. The next prime is 20345016619. The reversal of 20345016611 is 11661054302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20345016611 - 2¹⁸ = 20344754467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20345016619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8006 + ... + 201876.

It is an arithmetic number, because the mean of its divisors is an integer number (2693172888).

Almost surely, 2^20345016611 is an apocalyptic number.

20345016611 is a deficient number, since it is larger than the sum of its proper divisors (1200366493).

20345016611 is a wasteful number, since it uses less digits than its factorization.

20345016611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200061.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 20345016611 in words is "twenty billion, three hundred forty-five million, sixteen thousand, six hundred eleven".